CA3140M96

Overview

The CA3140M96 is a single operational amplifier manufactured by Renesas Electronics Corporation, housed in an 8-pin SOIC plastic package. It utilizes BiMOS technology, combining PMOS input transistors with bipolar output stages to achieve high input impedance and low input current. The device operates on supply voltages ranging from 4V to 36V (single or dual). Key electrical specifications include a gain-bandwidth product of 4.5 MHz, a slew rate of 9 V/µs, and an input bias current of 10 pA at ±15V. It features internal phase compensation for stability in unity gain configurations.

Feature Summary

• Integrates PMOS field-effect transistors in the input stage to provide very high input impedance and extremely low input current.
• Features a bipolar transistor output stage with built-in protection against damage from load terminal short circuits to either supply rail or ground.
• Includes internally compensated phase correction for stable operation in unity gain follower applications without external components.
• Supports common mode input voltage ranges extending down to 0.5V below the negative supply terminal, facilitating single-supply operation.

Applications

• Ground-referenced single supply amplifiers in automobile and portable instrumentation
• Sample and hold amplifiers
• Photocurrent instrumentation
• Peak detectors
• Active filters

Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm RoHS compliance status if lead-free processing is mandated for the assembly line. Ensure the component temperature range aligns with the intended operating environment limits. Cross-reference the manufacturer part number with the distributor catalog to confirm availability and authenticity before finalizing procurement orders.

Selection Notes

Select this component when high input impedance and low bias current are critical requirements for the signal path. Consider its capability for direct replacement of industry standard 741 amplifiers in most existing designs. Evaluate its suitability for single-supply applications due to the extended common mode input voltage range. Verify that the gain-bandwidth product and slew rate meet the dynamic performance needs of the target circuit.

Part Context

This device belongs to the CA3140 series of BiMOS operational amplifiers produced by Renesas Electronics Corporation. It represents a monolithic integration of high-voltage PMOS and bipolar technologies. The series is designed to offer superior input characteristics compared to traditional bipolar op-amps while maintaining robust output drive capabilities. It serves as a versatile general-purpose amplifier suitable for various analog signal processing tasks.

Replacement Considerations

CA3140AMZ96